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This is a rebuild of Drinking Water Watch and not yet the official record. Use the agency’s current Drinking Water Watch for anything you need to rely on.

Chemical and radiological sample results

MS0200017 , Benndale School

27 of the 52 analytes this system has been tested for have been detected at least once, across 191 samples on record.

The other 25 were tested for and never found. An analyte is counted here if any result on record measured it, so this covers the whole history and not the samples listed below.

Across all 191 samples on record, detections range from September 10, 2003 to August 12, 2025. These figures cover the whole record.

What counts as a non-detect is defined in the help: Less than Indicator. This system’s violations.

What has been detected, ever

Every analyte measured above its reporting level at any point in this system’s record, most often detected first. This is not limited to the samples listed below.

Every analyte ever detected for Benndale School, with how many results found it and when it was first and last detected. Covers the whole record, not only the samples listed below.
Analyte Kind Detected in First detected Last detected
Copper, Free 1022 Inorganic Chemical 72 of 72 results Jan 7, 2004 Aug 12, 2025
Lead 1030 Inorganic Chemical 27 of 72 results Jan 7, 2004 Aug 12, 2024
Barium 1010 Inorganic Chemical 10 of 10 results Sep 10, 2003 Feb 5, 2025
Fluoride 1025 Inorganic Chemical 10 of 10 results Sep 10, 2003 Feb 5, 2025
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 9 of 11 results Aug 27, 2007 Apr 7, 2025
Xylenes, Total 2955 Organic Chemical 9 of 54 results Jun 2, 2009 Jun 10, 2019
TTHM 2950 Organic Chemical 6 of 10 results Aug 1, 2007 Apr 7, 2025
Chromium 1020 Inorganic Chemical 5 of 10 results Feb 4, 2004 Feb 5, 2025
Ethylbenzene 2992 Organic Chemical 4 of 54 results Jun 2, 2009 Jul 27, 2017
Dichloroacetic Acid 2451 Organic Chemical 3 of 5 results Aug 27, 2007 Sep 2, 2014
Nitrate-Nitrite 1038 Inorganic Chemical 2 of 23 results Jun 7, 2004 Feb 7, 2023
Nitrite 1041 Inorganic Chemical 2 of 23 results Jun 2, 2010 Feb 7, 2023
Nickel 1036 Inorganic Chemical 2 of 10 results Mar 31, 2008 Apr 16, 2014
Trichloroacetic Acid 2452 Organic Chemical 2 of 5 results Aug 27, 2007 Jul 19, 2012
Monobromoacetic Acid 2453 Organic Chemical 2 of 5 results Aug 27, 2007 Jul 19, 2012
Chloroform 2941 Organic Chemical 2 of 4 results Aug 1, 2007 Jul 19, 2012
Bromodichloromethane 2943 Organic Chemical 2 of 4 results Aug 1, 2007 Jul 19, 2012
Sulfate 1055 Inorganic Chemical 2 of 2 results Sep 10, 2003 Feb 4, 2004
Cyanide 1024 Inorganic Chemical 1 of 10 results Jun 17, 2025 Jun 17, 2025
Sodium 1052 Inorganic Chemical 1 of 1 result Feb 9, 2021 Feb 9, 2021
Toluene 2991 Organic Chemical 1 of 54 results Jun 10, 2019 Jun 10, 2019
Dibromoacetic Acid 2454 Organic Chemical 1 of 5 results Jul 19, 2012 Jul 19, 2012
Bromoform 2942 Organic Chemical 1 of 4 results Jul 19, 2012 Jul 19, 2012
Dibromochloromethane 2944 Organic Chemical 1 of 4 results Jul 19, 2012 Jul 19, 2012
Cadmium 1015 Inorganic Chemical 1 of 10 results Feb 28, 2005 Feb 28, 2005
Selenium 1045 Inorganic Chemical 1 of 10 results Feb 28, 2005 Feb 28, 2005
Nitrate 1040 Inorganic Chemical 1 of 23 results Jun 7, 2004 Jun 7, 2004

No date range is applied: this list draws on every sample on record. Show the last two years only.

The most recent samples, result by result

The table below lists 181–190 of 191 samples, newest first — collected September 10, 2003 to January 7, 2004. The summary above covers all 191.

30 results from the 10 samples listed here: 15 detected, 15 not detected. Across the whole record it is 180 of 1,533. A sample is analysed for many analytes at once, so one sample appears on as many rows as it had results.

Chemical and radiological sample results for Benndale School, every result from 181 to 190 of 191 samples shown, newest first. Not detected means the amount was below the level the laboratory can reliably report, which is given beside it.
Result Analyte Monitoring period
Collected
Jan 7, 2004
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
040108-009PB
Laboratory
MSDH Lab
0.055 mg/l , sample collected Jan 7, 2004, sampling point DS000 Copper, Free 1022 Jan 1, 2004 – Jun 30, 2004
Not detected below 0.001 mg/l Method Detection Limit , sample collected Jan 7, 2004, sampling point DS000 Lead 1030 Jan 1, 2004 – Jun 30, 2004
Collected
Jan 7, 2004
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
040108-008PB
Laboratory
MSDH Lab
0.029 mg/l , sample collected Jan 7, 2004, sampling point DS000 Copper, Free 1022 Jan 1, 2004 – Jun 30, 2004
Not detected below 0.001 mg/l Method Detection Limit , sample collected Jan 7, 2004, sampling point DS000 Lead 1030 Jan 1, 2004 – Jun 30, 2004
Collected
Jan 7, 2004
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
040108-007PB
Laboratory
MSDH Lab
0.012 mg/l , sample collected Jan 7, 2004, sampling point DS000 Copper, Free 1022 Jan 1, 2004 – Jun 30, 2004
Not detected below 0.001 mg/l Method Detection Limit , sample collected Jan 7, 2004, sampling point DS000 Lead 1030 Jan 1, 2004 – Jun 30, 2004
Collected
Jan 7, 2004
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
040108-006PB
Laboratory
MSDH Lab
0.059 mg/l , sample collected Jan 7, 2004, sampling point DS000 Copper, Free 1022 Jan 1, 2004 – Jun 30, 2004
Not detected below 0.001 mg/l Method Detection Limit , sample collected Jan 7, 2004, sampling point DS000 Lead 1030 Jan 1, 2004 – Jun 30, 2004
Collected
Jan 7, 2004
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
040108-005PB
Laboratory
MSDH Lab
0.039 mg/l , sample collected Jan 7, 2004, sampling point DS000 Copper, Free 1022 Jan 1, 2004 – Jun 30, 2004
0.001 mg/l , sample collected Jan 7, 2004, sampling point DS000 Lead 1030 Jan 1, 2004 – Jun 30, 2004
Collected
Jan 7, 2004
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
040108-004PB
Laboratory
MSDH Lab
0.026 mg/l , sample collected Jan 7, 2004, sampling point DS000 Copper, Free 1022 Jan 1, 2004 – Jun 30, 2004
0.001 mg/l , sample collected Jan 7, 2004, sampling point DS000 Lead 1030 Jan 1, 2004 – Jun 30, 2004
Collected
Jan 7, 2004
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
040108-003PB
Laboratory
MSDH Lab
0.017 mg/l , sample collected Jan 7, 2004, sampling point DS000 Copper, Free 1022 Jan 1, 2004 – Jun 30, 2004
Not detected below 0.001 mg/l Method Detection Limit , sample collected Jan 7, 2004, sampling point DS000 Lead 1030 Jan 1, 2004 – Jun 30, 2004
Collected
Jan 7, 2004
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
040108-002PB
Laboratory
MSDH Lab
0.03 mg/l , sample collected Jan 7, 2004, sampling point DS000 Copper, Free 1022 Jan 1, 2004 – Jun 30, 2004
0.001 mg/l , sample collected Jan 7, 2004, sampling point DS000 Lead 1030 Jan 1, 2004 – Jun 30, 2004
Collected
Jan 7, 2004
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
040108-001PB
Laboratory
MSDH Lab
0.014 mg/l , sample collected Jan 7, 2004, sampling point DS000 Copper, Free 1022 Jan 1, 2004 – Jun 30, 2004
Not detected below 0.001 mg/l Method Detection Limit , sample collected Jan 7, 2004, sampling point DS000 Lead 1030 Jan 1, 2004 – Jun 30, 2004
Collected
Sep 10, 2003
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
030911-058IN
Laboratory
MSDH Lab
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 10, 2003, sampling point TF101 Arsenic 1005 EPA method 200.8 Not recorded
0.011 mg/l , sample collected Sep 10, 2003, sampling point TF101 Barium 1010 EPA method 200.8 Not recorded
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Sep 10, 2003, sampling point TF101 Cadmium 1015 EPA method 200.8 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 10, 2003, sampling point TF101 Chromium 1020 EPA method 200.8 Not recorded
0.312 mg/l , sample collected Sep 10, 2003, sampling point TF101 Fluoride 1025 EPA method 300.0 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 10, 2003, sampling point TF101 Mercury 1035 EPA method 200.8 Not recorded
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Sep 10, 2003, sampling point TF101 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 10, 2003, sampling point TF101 Selenium 1045 EPA method 200.8 Not recorded
14.6 mg/l , sample collected Sep 10, 2003, sampling point TF101 Sulfate 1055 EPA method 300.0 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 10, 2003, sampling point TF101 Antimony, Total 1074 EPA method 200.8 Not recorded
Not detected below 0.0003 mg/l Minimum Reporting Level , sample collected Sep 10, 2003, sampling point TF101 Beryllium, Total 1075 EPA method 200.8 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 10, 2003, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Not recorded

Routine (10).